guard hair

noun

: one of the usually long coarse hairs forming a protective coating over the undercoat of a mammal

Examples of guard hair in a Sentence

Recent Examples on the Web
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In contrast, New World porcupines—those found in North and South America—have individual quills interspersed with sensory guard hairs, bristles, and underfur. Encyclopedia Britannica, 26 May 2026 These guard hairs must be removed before accessing the quills. Chadd Scott, Forbes.com, 8 Jan. 2026 Deer put on extra fat in the fall and grow a winter coat with long guard hairs for insulation. Anne Readel, Better Homes & Gardens, 8 Dec. 2025 The rest of the body is blanketed in soft, pale hairs called vellus hairs, which wick sweat to keep us cool, and thicker, more visible guard hairs, which protect the skin against damage from rubbing and scratching. Ariel Bleicher, Quanta Magazine, 16 Apr. 2025

Word History

First Known Use

1913, in the meaning defined above

Time Traveler
The first known use of guard hair was in 1913

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Cite this Entry

“Guard hair.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/guard%20hair. Accessed 5 Jul. 2026.

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